EP3949609A1 - Degradation signaling - Google Patents
Degradation signalingInfo
- Publication number
- EP3949609A1 EP3949609A1 EP20784569.4A EP20784569A EP3949609A1 EP 3949609 A1 EP3949609 A1 EP 3949609A1 EP 20784569 A EP20784569 A EP 20784569A EP 3949609 A1 EP3949609 A1 EP 3949609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- user equipment
- maximum sensitivity
- sensitivity degradation
- improved maximum
- degradation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/20—Performing reselection for specific purposes for optimising the interference level
Definitions
- the example and non-limiting embodiments relate generally to radio signal communications and, more particularly, to messaging regarding signal degradation.
- sensitivity may degrade if there is simultaneous transmission on the uplink and downlink frequencies.
- FIG. 1 is a block diagram of one possible and non-limiting exemplary system in which the exemplary embodiments may be practiced;
- Fig. 2 is a diagram illustrating features as described herein;
- Fig. 3 is a diagram illustrating features as described herein;
- Fig. 4 is a diagram illustrating features as described herein;
- Fig. 5 is a diagram illustrating features as described herein;
- Fig. 6A is a table illustrating part of an example of a maximum sensitivity degradation table as described herein;
- Fig. 6B is a table illustrating part of an example of a maximum sensitivity degradation table as described herein;
- Fig. 7 is a table illustrating an example of a maximum sensitivity degradation table as described herein;
- Fig 8 is a flowchart illustrating steps as described herein.
- Fig 9 is a flowchart illustrating steps as described herein. DETAILED DESCRIPTION OF EMBODIMENTS
- eNB or eNodeB evolved Node B (e.g., an LTE base station)
- En-gNB or En-gNB node providing NR user plane and control plane protocol terminations towards the UE, and acting as secondary node in EN-DC
- E-UTRA evolved universal terrestrial radio access, i.e., the LTE radio access technology
- gNB or gNodeB base station for 5G/NR, i.e., a node providing NR user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC
- UE user equipment e.g., a wireless, typically mobile device
- FIG. 1 shows a block diagram of one possible and non- limiting example in which the examples may be practiced.
- a user equipment (UE) 110 radio access network (RAN) node 170, and network element(s) 190 are illustrated.
- the user equipment (UE) 110 is in wireless communication with a wireless network 100.
- a UE is a wireless device that can access the wireless network 100.
- the UE 110 includes one or more processors 120, one or more memories 125, and one or more transceivers 130 interconnected through one or more buses 127. Each of the one or more transceivers 130 includes a receiver, Rx, 132 and a transmitter, Tx, 133.
- the one or more buses 127 may be address, data, or control buses, and may include any interconnection mechanism, such as a series of lines on a motherboard or integrated circuit, fiber optics or other optical communication equipment, and the like.
- the one or more transceivers 130 are connected to one or more antennas 128.
- the one or more memories 125 include computer program code 123.
- the UE 110 includes a module 140, comprising one of or both parts 140-1 and/or 140- 2, which may be implemented in a number of ways.
- the module 140 may be implemented in hardware as module 140-1, such as being implemented as part of the one or more processors 120.
- the module 140-1 may be implemented also as an integrated circuit or through other hardware such as a programmable gate array.
- the module 140 may be implemented as module 140-2, which is implemented as computer program code 123 and is executed by the one or more processors 120.
- the one or more memories 125 and the computer program code 123 may be configured to, with the one or more processors 120, cause the user equipment 110 to perform one or more of the operations as described herein.
- the UE 110 communicates with RAN node 170 via a wireless link 111.
- the RAN node 170 in this example is a base station that provides access by wireless devices such as the UE 110 to the wireless network 100.
- the RAN node 170 may be, for example, a base station for 5G, also called New Radio (NR).
- the RAN node 170 may be a NG- RAN node, which is defined as either a gNB or an ng-eNB.
- a gNB is a node providing NR user plane and control plane protocol terminations towards the UE, and connected via the NG interface to a 5GC (such as, for example, the network element(s) 190).
- the ng-eNB is a node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC.
- the NG-RAN node may include multiple gNBs, which may also include a central unit (CU) (gNB-CU) 196 and distributed unit(s) (DUs) (gNB-DUs), of which DU 195 is shown.
- the DU may include or be coupled to and control a radio unit (RU).
- the gNB-CU is a logical node hosting RRC, SDAP and PDCP protocols of the gNB or RRC and PDCP protocols of the en-gNB that controls the operation of one or more gNB-DUs.
- the gNB-CU terminates the FI interface connected with the gNB- DU.
- the FI interface is illustrated as reference 198, although reference 198 also illustrates a link between remote elements of the RAN node 170 and centralized elements of the RAN node 170, such as between the gNB-CU 196 and the gNB-DU 195.
- the gNB-DU is a logical node hosting RLC, MAC and PHY layers of the gNB or en-gNB, and its operation is partly controlled by gNB-CU.
- One gNB-CU supports one or multiple cells. One cell is supported by only one gNB-DU.
- the gNB-DU terminates the FI interface 198 connected with the gNB- CU.
- the DU 195 is considered to include the transceiver 160, e.g., as part of a RU, but some examples of this may have the transceiver 160 as part of a separate RU, e.g., under control of and connected to the DU 195.
- the RAN node 170 may also be an eNB (evolved NodeB) base station, for LTE (long term evolution), or any other suitable base station or node.
- eNB evolved NodeB
- the RAN node 170 includes one or more processors 152, one or more memories 155, one or more network interfaces (N/W I/F(s)) 161, and one or more transceivers 160 interconnected through one or more buses 157.
- Each of the one or more transceivers 160 includes a receiver, Rx, 162 and a transmitter, Tx, 163.
- the one or more transceivers 160 are connected to one or more antennas 158.
- the one or more memories 155 include computer program code 153.
- the CU 196 may include the processor(s) 152, memories 155, and network interfaces 161. Note that the DU 195 may also contain its own memory/memories and processor(s), and/or other hardware, but these are not shown.
- the RAN node 170 includes a module 150, comprising one of or both parts 150-1 and/or 150-2, which may be implemented in a number of ways.
- the module 150 may be implemented in hardware as module 150-1, such as being implemented as part of the one or more processors 152.
- the module 150-1 may be implemented also as an integrated circuit or through other hardware such as a programmable gate array.
- the module 150 may be implemented as module 150-2, which is implemented as computer program code 153 and is executed by the one or more processors 152.
- the one or more memories 155 and the computer program code 153 are configured to, with the one or more processors 152, cause the RAN node 170 to perform one or more of the operations as described herein.
- the functionality of the module 150 may be distributed, such as being distributed between the DU 195 and the CU 196, or be implemented solely in the DU 195.
- the one or more network interfaces 161 communicate over a network such as via the links 176 and 131.
- Two or more gNBs 170 may communicate using, e.g., link 176.
- the link 176 may be wired or wireless or both and may implement, for example, an Xn interface for 5G, an X2 interface for LTE, or other suitable interface for other standards.
- the one or more buses 157 may be address, data, or control buses, and may include any interconnection mechanism, such as a series of lines on a motherboard or integrated circuit, fiber optics or other optical communication equipment, wireless channels, and the like.
- the one or more transceivers 160 may be implemented as a remote radio head (RRH) 195 for LTE or a distributed unit (DU) 195 for gNB implementation for 5G, with the other elements of the RAN node 170 possibly being physically in a different location from the RRH/DU, and the one or more buses 157 could be implemented in part as, for example, fiber optic cable or other suitable network connection to connect the other elements (e.g., a central unit (CU), gNB-CU) of the RAN node 170 to the RRH/DU 195.
- Reference 198 also indicates those suitable network link(s).
- the cell makes up part of a base station. That is, there can be multiple cells per base station. For example, there could be three cells for a single carrier frequency and associated bandwidth, each cell covering one-third of a 360 degree area so that the single base station’s coverage area covers an approximate oval or circle. Furthermore, each cell can correspond to a single carrier and a base station may use multiple carriers. So if there are three 120 degree cells per carrier and two carriers, then the base station has a total of 6 cells.
- the wireless network 100 may include a network element or elements 190 that may include core network functionality, and which provides connectivity via a link or links 181 with a further network, such as a telephone network and/or a data communications network (e.g., the Internet).
- core network functionality for 5G may include access and mobility management fimction(s) (AMF(S)) and/or user plane functions (UPF(s)) and/or session management fimction(s) (SMF(s)).
- AMF(S) access and mobility management fimction(s)
- UPF(s) user plane functions
- SMF(s) session management fimction
- Such core network functionality for LTE may include MME (Mobility Management Entity)/SGW (Serving Gateway) functionality. These are merely exemplary functions that may be supported by the network element(s) 190, and note that both 5G and LTE functions might be supported.
- the RAN node 170 is coupled via a link 131 to a network element 190.
- the link 131 may be implemented as, e.g., an NG interface for 5G, or an SI interface for LTE, or other suitable interface for other standards.
- the network element 190 includes one or more processors 175, one or more memories 171, and one or more network interfaces (N/W I/F(s)) 180, interconnected through one or more buses 185.
- the one or more memories 171 include computer program code 173.
- the one or more memories 171 and the computer program code 173 are configured to, with the one or more processors 175, cause the network element 190 to perform one or more operations.
- the wireless network 100 may implement network virtualization, which is the process of combining hardware and software network resources and network functionality into a single, software-based administrative entity, a virtual network.
- Network virtualization involves platform virtualization, often combined with resource virtualization.
- Network virtualization is categorized as either external, combining many networks, or parts of networks, into a virtual unit, or internal, providing network-like functionality to software containers on a single system. Note that the virtualized entities that result from the network virtualization are still implemented, at some level, using hardware such as processors 152 or 175 and memories 155 and 171, and also such virtualized entities create technical effects.
- the computer readable memories 125, 155, and 171 may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, flash memory, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
- the computer readable memories 125, 155, and 171 may be means for performing storage functions.
- the processors 120, 152, and 175 may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on a multi-core processor architecture, as non-limiting examples.
- the processors 120, 152, and 175 may be means for performing functions, such as controlling the UE 110, RAN node 170, and other functions as described herein.
- the various embodiments of the user equipment 110 can include, but are not limited to, cellular telephones such as smart phones, tablets, personal digital assistants (PDAs) having wireless communication capabilities, portable computers having wireless communication capabilities, image capture devices such as digital cameras having wireless communication capabilities, gaming devices having wireless communication capabilities, music storage and playback appliances having wireless communication capabilities, Internet appliances permitting wireless Internet access and browsing, tablets with wireless communication capabilities, as well as portable units or terminals that incorporate combinations of such functions.
- cellular telephones such as smart phones, tablets, personal digital assistants (PDAs) having wireless communication capabilities, portable computers having wireless communication capabilities, image capture devices such as digital cameras having wireless communication capabilities, gaming devices having wireless communication capabilities, music storage and playback appliances having wireless communication capabilities, Internet appliances permitting wireless Internet access and browsing, tablets with wireless communication capabilities, as well as portable units or terminals that incorporate combinations of such functions.
- PDAs personal digital assistants
- portable computers having wireless communication capabilities
- image capture devices such as digital cameras having wireless communication capabilities
- gaming devices having wireless communication capabilities
- music storage and playback appliances having wireless communication capabilities
- features as described herein may be used to define signaling. More specifically, features as described herein may be used to define signaling in regard to UE receiver performance degradation for example. In one example embodiment features as described herein may be used to define signaling such that a user equipment (UE) may indicate to a network an actual maximum sensitivity degradation (MSD) required for each supported E-UTRA-NR Dual Connectivity (EN-DC) or Long Term Evolution/New Radio Carrier Aggregation/Due Connectivity (LTE/NR CA/DC) configuration. This may be, for example, from those configurations allowed in maximum sensitivity degradation tables and/or configurations to include no maximum sensitivity degradation at all.
- MSD maximum sensitivity degradation
- EN-DC E-UTRA-NR Dual Connectivity
- LTE/NR CA/DC Long Term Evolution/New Radio Carrier Aggregation/Due Connectivity
- Fig. 6 shows examples of maximum sensitivity degradation tables for LTE and NR, respectively, for example.
- Figs. 6A and 6B illustrated is a table showing examples of maximum sensitivity degradation for LTE, where Fig. 6B is a continuation of the table of Fig. 6 A.
- Figs. 6A and 6B may illustrate some examples in which MSD may be caused when uplink channel frequency and downlink channel frequency are close to each other.
- Fig. 6A includes that for EUTRA CA configuration CA 1A-3A, using EUTRA band 1, UL F c of 1950 MHz, UL/DL BW of 5 MHz, UL CLRB of 25, and DL Fc of 2140 MHz, the maximum sensitivity degradation may have a value of 23dB, where the duplex mode is FDD and the source of IMD is IMD3.
- 6A also includes that for EUTRA CA configuration CA 1A-8A, using EUTRA band 3, UL F c of 1760 MHz, UL/DL BW of 5 MHz, UL CLRB of 25, and DL F c of 1855 MHz, there may be no maximum sensitivity degradation, where the duplex mode is FDD and the source of IMD is not applicable.
- a UE may, using the table of Fig. 6A, indicate to a network an actual maximum sensitivity degradation for CA 1A-3A of 23 dB, and indicate to the network that there is no maximum sensitivity degradation for CA A-8A.
- Fig. 7 illustrated is a table showing examples of MSD for NR.
- Fig. 7 may illustrate some examples in which MSD may be caused when uplink channel frequency and downlink channel frequency have a harmonic relationship with one another.
- Fig. 7 includes that where UL band is n3 and DL band is n77, there may be no MSD due to harmonic exception for the DL band at 5 MHz.
- Fig. 7 also includes that where UL band is n3 and DL band is n77, there may be MSD of 23.9 dB.
- a UE may, using the table of Fig.
- E-UTRA-NR Dual Connectivity EN-DC
- LTE/NR CA/DC Long term Evolution Carrier Aggregation/Dual Connectivity
- this may be used in relation to 3GPP TS 36.101 in regard to LTE, and/or New Radio Carrier Aggregation/Dual Connectivity (NR CA/DC) configurations, such as in relation to 3GPP TS 38.101-1, 38.101-2 and 38.101-3 for NR, and signaling such as in the 3GPP TS 36.331 relating to LTE and/or 3GPP TS 38.331 relating to NR for example.
- NR CA/DC New Radio Carrier Aggregation/Dual Connectivity
- each UE may indicate to a network that the UE can support the improved maximum sensitivity degradation (MSD) values for such configurations.
- MSD maximum sensitivity degradation
- the network 100 may transmit a signal or message, such as UECapabilityEnquiry, to the UE 110 to inquire about the capability of the UE.
- the UE 110 is configured to indicate to the network 100, such as via signaling or message 202, an actual or improved MSD required for each EN-DC configuration.
- the UE may communicate to the network via the UE capability transfer signaling, such as UECapabilitylnformation as 202 for example, the actual or improved MSD required for each EN-DC configuration.
- the actual or improved MSD required for each EN- DC configuration may be selected from those allowed in the MSD tables, or the UE may indicate no MSD at all for example.
- the network 100 may transit a signal or message, such as RRCReconfiguration for example, to the UE 110 for establishing a Radio Connection between UE and Network.
- Fig. 3 shows where a RRC reconnection is successful and Fig. 4 shows where a RRC reconnection has a failure.
- the UE 110 may be configured to indicate to the network 100 the actual MSD required for each EN-DC configuration in both of these situations.
- the UE 110 may transmit a signal or message to the network 100.
- the signal or message 206 or 208 may signal the actual MSD required for each EN-DC configuration.
- the signal or message 206 may be, for example, via the Signaling Radio Bearer SRB3 for RRC (re-) configuration, in the case where a RRC reconnection has a failure.
- the signal or message from the UE may be a RRC connection re-establishment message 208.
- the actual MSD required for each EN-DC configuration may be from those allowed in the MSD tables or no MSD at all, for example.
- the UE 110 may be configured to indicate to the network 100 via measurement reporting 210, such as MeasurementReport, that the actual MSD occurred with cross band transmit-to -receiver degradation. This may be done, for example, by measuring the resulting SINR in the downlink receive signal when simultaneous transmission on the uplink is present.
- measurement reporting may be explicitly requested by the network 100, or the measurement reporting may be autonomously reported by the UE 110 as part of normal measurement reporting for example.
- a new Bandwidth Combination Set could be defined in the 3GPP standard for the improved MSD performances, then the UE can signal which BCS (old, or new, or both) the UE can support (for example via UE capacity signaling), and the improved MSD may be linked to that particular new BCS support.
- the UE 110 may inform the network 100 which BCS(s) the UE supports and, in the case where the UE indicated the new BCS with improved MSD, the network can take this improved performance into consideration.
- the network 100 knows that UE 110 has a better filter implemented and the MSD is expected to be better or non-existent for all BCS. This method does not need modification to existing signaling because the BCS signaling is used for both LTE and NR carrier aggregation.
- features as described herein may be used to define some signaling in the LTE and/or NR such that each UE can indicate to the network the actual MSD required for each supported EN-DC/CA/DC configuration.
- MSD maximum sensitivity degradation
- 3GPP R4- 1901880 a number of FDD-TDD EN-DC configurations have been defined in the Rel-15 3GPP TS 38.101-3 NR specification.
- the downlink reference sensitivity is expected to be degraded if simultaneous transmission on the uplink of the aggressor is present.
- a NR uplink channel frequency in the TDD band may be close to an LTE downlink channel frequency for an EN-DC configuration in an FDD band.
- Typical UE implementations may use filters which do not have steep or much out-of-band attenuation in the TDD band since there is no self-band protection required which enables lower front-end insertion loss which is beneficial for coverage. This has the consequence that the spurious and out-of-band emissions rejection to nearby bands is also then lower.
- NR has much wider bandwidths than LTE in many FR1 bands supporting up to 100 MHz channel bandwidth. This results in higher spurious and out-of- band emissions due to transmit spectral re-growth noise at larger frequency offsets away from the transmission channel. Additionally, the cross-modulation effect, when simultaneous wideband transmission on NR is present with narrowband transmission on LTE, reaches further in the frequency domain due to the wider bandwidths of NR.
- third order cross-modulation products are more likely to impact downlink receive bands, especially for those FDD bands with relatively narrow duplex distance.
- baseband spurious products such as CIM3 or transmit DAC sampling images for example, extend further due to wider NR channel bandwidths available for transmission and, thus, are more likely to impact downlink receive bands when they might not have previously reached for FTE carrier aggregation.
- Receiver blocking is also a factor in such EN-DC configuration that can degrade sensitivity.
- the potential receiver blocking degradation in FDD band downlink is dependent on the FDD band receive filter rejection in the TDD band transmit frequency range.
- 3GPP TS 36.101 specification for FTE and 3GPP TS 38.101 specification for NR have made accommodations for cross band transmit-to-receiver degradation in several different ways.
- a MSD table has been created;
- Table 7.3B.2.3.3-1 Reference sensitivity exceptions due to close proximity of bands for EN-DC in NR FR1 in NR 38.101-3.
- a separate table for MSD due to insufficient cross-band isolation has been created;
- Table 7.3B.2.3.4-1 Reference sensitivity exceptions due to cross band isolation for EN-DC in NR FR1 in NR 38.101-3.
- MSD may be a more preferred solution to FDD-TDD EN-DC.
- Features as described herein provide a solution for use of the MSD.
- LTE carrier aggregation/dual connectivity LTE or NR
- the carrier aggregation operation is such that only one uplink is used; then, there is no cross-modulation effect as described above, but other mentioned issues may be present.
- the LTE or NR carrier aggregation operation is such that two uplinks are used, then the situation is very similar to EN-DC.
- the MSD for each EN-DC configuration may be a function of the separation between transmit and receive frequencies as well as the uplink and downlink bandwidths.
- the MSD for each UE may be different depending on implementation. For example, previously there was not sufficient isolation between TDD Band 41 and mid- spectrum FDD bands such as Band 25, Band 3 and Band 1 with earlier filters. However, more recent advances in technology have enabled integrated filter/multiplexer products to achieve sufficient isolation between TDD Band 41 and FDD Band 1 to allow for dual transmission in TDD Band 41 and FDD Band 1 uplink carrier aggregation with no MSD allowed.
- the MSD allowed in the 3GPP TS 36.101 for the FTE specification and 3GPP TS 38.101 for the NR specification have been based on certain implementation assumptions such as achievable filter rejection that should be updated with advances in technology.
- the MSD tables defined in the 3GPP TS 36.101 for the FTE specification and 3GPP TS 38.101 for the NR specification cannot be updated with advances in technology due to backward compatibility issue. Therefore, the network scheduler can only base the scheduling decisions on the MSD tables defined in the 3GPP TS 36.101 for the FTE specification and 3GPP TS 38.101 for the NR specification which have been based on outdated technology with the allowed MSD much larger than the ones required by each UE for each EN-DC configuration.
- IMD intermodulation
- an example method 800 comprising: determining by a user equipment an actual or improved maximum sensitivity degradation for at least one of a plurality of multi connectivity frequency bands 810; and transmitting the determined actual or improved maximum sensitivity degradation from the user equipment to a network equipment 830.
- the example method may further comprise measuring a Signal-To -Interference- Plus-Noise Ratio in a downlink receive signal when simultaneous transmission on an uplink(s) is present 820.
- the example method may further comprise receiving by the user equipment from a network a new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation 840.
- the example method may further comprise the user equipment informing the network which bandwidth combination set(s) the user equipment supports 850. It should be noted that the order of the steps of the example method may vary, and that the example method may comprise fewer or additional steps.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may be by a capability transfer signaling the actual or improved maximum sensitivity degradation required for the at least one of the plurality of multi connectivity frequency bands.
- the plurality of multi-connectivity frequency bands may be each of a plurality of E-UTRA-NR Dual Connectivity or Long Term Evolution/New Radio Carrier Aggregation/Dual Connectivity (LTE/NR CA/DC) configurations.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may indicate one allowed in a maximum sensitivity degradation table.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may indicate no actual or improved maximum sensitivity degradation.
- the transmitting of the determined actual or improved maximum sensitivity degradation may be in a signaling radio bearer for radio resource control configuration or reconfiguration.
- the signaling radio bearer may be SRB3.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to-receive degradation.
- the method may further comprise measuring a Signal-To-Interference-Plus-Noise Ratio in a downlink receive signal when simultaneous transmission on an uplink(s) is present.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may be in response to an explicit request from a network.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may be autonomously reported by the user equipment without an explicit request from a network.
- the method may further comprise receiving by the user equipment from a network a new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation. This may be used with a new BCS table defined in 3GPP standards to be linked with the improved capability (e.g. 3dB to ldB MSD in new BCS), but not actual MSD performances (e.g. UE can actually meet 0.5 dB MSD) ‘with the determined improved’.
- the method may further comprise the user equipment informing the network which bandwidth combination set(s) the user equipment supports.
- an example embodiment may be provided in an apparatus comprising: at least one processor; at least one non-transitory memory including computer program code, the at least one non-transitory memory and the computer program code configured to, with the at least one processor, cause the apparatus to: determine by a user equipment an actual or improved maximum sensitivity degradation for at least one of a plurality of multi-connectivity frequency bands; and cause transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment to a network equipment.
- the apparatus may be further configured to cause the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment with a capability transfer signaling of the respective actual or improved maximum sensitivity degradation required for the at least one of the plurality of multi-connectivity frequency bands.
- the plurality of multi-connectivity frequency bands may respectively comprise a plurality of E- UTRA-NR Dual Connectivity configurations, or Carrier Aggregation or Dual Connectivity in Long Term Evolution or New Radio configurations.
- the apparatus may be further configured to cause the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment indicated as the at least one of the plurality of multi-connectivity frequency bands allowed in a maximum sensitivity degradation table.
- the apparatus may be further configured to cause the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment indicated as the at least one of the plurality of multi-connectivity frequency bands associated with no actual or improved maximum sensitivity degradation.
- the apparatus may be further configured to cause the transmitting of the determined actual or improved maximum sensitivity degradation in a signaling radio bearer for radio resource control configuration or reconfiguration.
- the signaling radio bearer may be SRB3.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to-receive degradation.
- the apparatus may be further configured to cause measuring of a Signal-To-Interference-Plus-Noise Ratio in a downlink receive signal when simultaneous transmission on one or more uplinks is present.
- the apparatus may be further configured to cause the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment in response to an explicit request from a network.
- the apparatus may be further configured to cause the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment autonomously without an explicit request from a network.
- the apparatus may be further configured to cause receiving with the user equipment from a network at least one new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation.
- the apparatus may be further configured to cause the user equipment to inform the network which bandwidth combination set(s) the user equipment supports.
- an example embodiment may be provided in a non- transitory program storage device, such as shown in Fig. 1, readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising: determining by a user equipment an actual or improved maximum sensitivity degradation for at least one of a plurality of multi-connectivity frequency bands; and transmitting the determined actual or improved maximum sensitivity degradation from the user equipment to a network equipment.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to -receive degradation.
- the operations may further comprise measuring a Signal- To-Interference-Plus-Noise Ratio in a downlink receive signal when simultaneous transmission on one or more uplinks is present.
- the operations may further comprise receiving with the user equipment from a network at least one new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation.
- an example embodiment may be provided in an apparatus comprising: means for determining by a user equipment an actual or improved maximum sensitivity degradation for at least one of a plurality of multi-connectivity frequency bands; and means for transmitting the determined actual or improved maximum sensitivity degradation from the user equipment to a network equipment.
- the transmitting of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to -receive degradation.
- the apparatus may further comprise means for measuring a Signal-To-Interference-Plus-Noise Ratio in a downlink receive signal when simultaneous transmission on one or more uplinks is present.
- the apparatus may further comprise means for receiving with the user equipment from a network at least one new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation.
- Fig. 9 illustrates the potential steps of an example embodiment.
- an example method 900 may be provided comprising: receiving by a network equipment an indication of a determined actual or improved maximum sensitivity degradation from a user equipment 920; and using the information received from the user equipment to assist in scheduling decisions by the network equipment 940.
- the example method may further comprise transmitting an explicit request for the indication of the determined actual or improved maximum sensitivity degradation 910, where the receiving for the indication is in response to the explicit request.
- the example method may further comprise transmitting to the user equipment with the network equipment a new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation 930.
- the receiving of the indication of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise receiving measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to -receive degradation.
- the method may further comprise transmitting an explicit request for the indication of the determined actual or improved maximum sensitivity degradation to the user equipment, where the receiving of the indication may be in response to the explicit request.
- the method may further comprise transmitting to the user equipment with the network equipment a new defined bandwidth combination set which may be linked with the determined improved maximum sensitivity degradation.
- an example embodiment may be provided in an apparatus comprising: at least one processor; at least one non-transitory memory including computer program code, the at least one non-transitory memory and the computer program code configured to, with the at least one processor, cause the apparatus to: cause receiving by a network equipment of an indication of a determined actual or improved maximum sensitivity degradation from a user equipment; and using the information received from the user equipment to assist in scheduling decisions by the network equipment.
- the causing of the receiving of the indication of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise causing receiving of measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to -receive degradation.
- the apparatus may be further configured to cause transmitting of an explicit request for the indication of the determined actual or improved maximum sensitivity degradation to the user equipment, where the receiving of the indication may be in response to the explicit request.
- the apparatus may be further configured to cause transmitting to the user equipment with the network equipment a new defined bandwidth combination set which may be linked with the determined improved maximum sensitivity degradation.
- an example embodiment may be provided in a non- transitory program storage device, such as shown in Fig. 1 for example, readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising: cause receiving by a network equipment an indication of a determined actual or improved maximum sensitivity degradation from a user equipment; and using the information received from the user equipment to assist in scheduling decisions by the network equipment.
- the causing of the receiving of the indication of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise causing receiving of measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to -receive degradation.
- the operations may further comprise cause transmitting of an explicit request for the indication of the determined actual or improved maximum sensitivity degradation to the user equipment, where the receiving of the indication is in response to the explicit request.
- the operations may further comprise cause transmitting to the user equipment with the network equipment a new defined bandwidth combination set which is linked with the determined improved maximum sensitivity degradation.
- an example embodiment may be provided in an apparatus comprising: means for receiving by a network equipment an indication of a determined actual or improved maximum sensitivity degradation from a user equipment; and means for using the information received from the user equipment to assist in scheduling decisions by the network equipment.
- the receiving of the indication of the determined actual or improved maximum sensitivity degradation from the user equipment may comprise receiving measurement reporting of the determined actual or improved maximum sensitivity degradation from the user equipment with cross band transmit-to-receive degradation.
- the apparatus may further comprise means for transmitting an explicit request for the indication of the determined actual or improved maximum sensitivity degradation to the user equipment, where the receiving of the indication may be in response to the explicit request.
- the apparatus may further comprise means for transmitting to the user equipment with the network equipment a new defined bandwidth combination set which may be linked with the determined improved maximum sensitivity degradation.
- a network scheduler can use the information to assist in scheduling decisions. For example, the information may be used by the network to reduce the uplink or downlink resource blocks allocation for the UE that previously required large MSD, or avoid uplink resource blocks that now require large MSD.
- the UE may or may not already be measuring the SINR for data signal according to implementation. This is different from the conventional 3 GPP standards which require the UE to measure reference signal quality (RSRQ), because the conventional 3 GPP standards do not require measurement of data signal quality.
- RSRQ reference signal quality
Abstract
Description
Claims
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US201962826098P | 2019-03-29 | 2019-03-29 | |
PCT/FI2020/050143 WO2020201617A1 (en) | 2019-03-29 | 2020-03-06 | Degradation signaling |
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US11785659B2 (en) * | 2019-10-04 | 2023-10-10 | Lg Electronics Inc. | Method for applying MSD and apparatus thereof |
US20220322474A1 (en) * | 2021-04-01 | 2022-10-06 | Lg Electronics Inc. | Method for applying msd and apparatus thereof |
US20220330169A1 (en) * | 2021-04-02 | 2022-10-13 | Lg Electronics Inc. | Maximum sensitivity degradation |
CN116261901A (en) * | 2021-10-09 | 2023-06-13 | 北京小米移动软件有限公司 | Multi-carrier configuration method and device for UE, communication equipment and storage medium |
US20230412353A1 (en) * | 2021-10-22 | 2023-12-21 | Lg Electronics Inc. | Degradation to reference sensitivity |
CN117716758A (en) * | 2021-10-26 | 2024-03-15 | Oppo广东移动通信有限公司 | Communication method, terminal equipment and network equipment |
CN116634580A (en) * | 2022-02-10 | 2023-08-22 | 北京三星通信技术研究有限公司 | Wireless communication method, network entity, UE and storage medium |
CN117560658A (en) * | 2022-08-03 | 2024-02-13 | 华为技术有限公司 | Communication method and communication device |
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JP6503136B2 (en) * | 2015-07-22 | 2019-04-17 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | Separate reporting of RF and BB capabilities of mobile user equipment in a wireless communication system supporting carrier aggregation |
CN107925870B (en) * | 2015-08-13 | 2021-11-05 | 苹果公司 | Method, apparatus and medium for user equipment capability reporting |
US10499229B2 (en) * | 2016-01-24 | 2019-12-03 | Qualcomm Incorporated | Enhanced fallback to in-band mode for emergency calling |
US10334600B2 (en) * | 2016-08-12 | 2019-06-25 | Lg Electronics Inc. | Studies about MSD level in band 46 |
US10925107B2 (en) * | 2016-10-14 | 2021-02-16 | Nokia Technologies Oy | Fast activation of multi-connectivity utilizing uplink signals |
US10361736B2 (en) * | 2017-03-24 | 2019-07-23 | Lg Electronics Inc. | Method for transmitting and receiving signal by aggregating two uplink carriers |
EP3496301B1 (en) * | 2017-09-11 | 2021-03-17 | LG Electronics Inc. -1- | Techniques for supporting dual connection between e-utra and nr transmits |
EP3462622B1 (en) | 2017-09-11 | 2021-11-24 | Apple Inc. | Detection of intermodulation issues and transmission scheme configuration to remedy intermodulation issues |
JP2021016019A (en) * | 2017-11-14 | 2021-02-12 | 株式会社Nttドコモ | User equipment and base station apparatus |
KR102163672B1 (en) * | 2017-11-14 | 2020-10-08 | 엘지전자 주식회사 | Method for transmitting and receiving signal by terminal supporting dual-connectivity between e-utra and nr and terminal performing the method |
WO2019214812A1 (en) * | 2018-05-08 | 2019-11-14 | Huawei Technologies Co., Ltd. | Multi-antenna mobile device and network devices for wireless communications |
US10624114B2 (en) * | 2018-08-03 | 2020-04-14 | T-Mobile Usa, Inc. | Controlling uplink data transmission in network |
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